mybatis的mapper返回map结果集

通过MapKey指定map的key值

@MapKey("id")
Map getUserInfoMap();

@MapKey("id")
Map> getUserValueMap();

map的value为java类

id="UserResultMap" type="com.xxx.domain.UserInfo">
        property="id" column="id" />
        property="username" column="username" />
        property="sex" column="sex" />
    
id="getUserInfoMap" resultMap="UserResultMap">
   select id,username,sex 
   from user_info

map的value为map

id="getUserValueMap" resultType="map" >
        select id,username,sex 
        from user_info